class_docstr: Blocks class to help creating the blocks.
docstr: Initializes (constructs) the `Blocks` class.
docstr_tok: ["Initializes","(","constructs",")","the","`","Blocks","`","class","."]
code: def __init__(self):
      """Initializes (constructs) the `Blocks` class."""
      if not _block_builders:
          for block_type in BlockType:
              if block_type == BlockType.EMPTY_BLOCK:
                  continue
              _block_builders.update(
                  {
                      block_type: registry.lookup(
                          block_type.name, block.Block
                      )
                  }
              )
  
file_path: model_search/model_search/block_builder.py
imports: import enum
  from model_search import block
  from model_search import registry
  from model_search.hparams import hyperparameters
label_desc: Use image node_id 1 to create a new Blocks object from inherited base classes: object with example: obj = Blocks()